NCI Drug Dictionary

The NCI Drug Dictionary contains technical definitions and synonyms for drugs/agents used to treat patients with cancer or conditions related to cancer. Each drug entry includes links to check for clinical trials listed in NCI's List of Cancer Clinical Trials.

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anti-ErbB3 antibody ISU104
A fully human antibody directed against the receptor tyrosine-protein kinase erbB-3 (ErbB3; HER3) with potential antineoplastic activity. Upon intravenous administration, anti-ErbB3 antibody ISU104 targets and binds to domain 3 and weakly interacts with domain 1 of ErbB3. This prevents heregulin (HRG) binding and blocks dimerization of ErbB3, thereby inactivating ErbB3 downstream signaling. ISU104 may also elicit the internalization of ErbB3 from the plasma membrane and downregulate ErbB3 expression. This inhibits cellular proliferation and survival of ErbB3-expressing tumor cells. ErbB3, a member of the epidermal growth factor receptor (EGFR) family of receptor tyrosine kinases, is frequently overexpressed in a variety of tumors and its overexpression generally correlates with poor prognosis and tumor resistance. Check for active clinical trials using this agent. (NCI Thesaurus)

Synonym:anti-HER3 antibody ISU104
Code name:ISU 104
ISU104
ISU-104